"Some pitching coaches tell me how incredible my arm is and that I could play for a long time, so I think I've been showing some guys what I bring to the table," Clemens said. "I had a couple really good conversations with front office and some guys around here, so it's definitely motivating."

He wants to be able to pick out his spots better during spring training, knowing he has to impress as a non-roster invitee.

"Sometimes I think I get too overzealous with my fastball and I just pound it and pound it and pound it. So picking my spots more, being smarter. You can't really challenge guys at this level. Once in a while you've got to pick your spots, but you can't challenge too many guys, even the guys you don't really know their names as much. You've still got to pitch."